The present invention belongs to the technical field of landscape garden engineering, and specifically discloses a salt-isolated rain garden structure. The salt-isolated rain garden structure includes a depression surrounded by side slopes, where a 10 cm thick drainage layer, a 10-30 cm thick filler layer, a 5 cm thick transition layer, a 20-30 cm thick planting layer, a 0.2-0.5 cm thick mulch layer and a 15-20 cm thick ponding layer are stacked in order from the bottom of the depression to up; a salt barrier is disposed between the planting layer and the transition layer and/or between the drainage layer and a saline layer; a vertical overflow pipe and a horizontal drainage pipe are disposed at the bottom of the depression; the overflow pipe and drainage pipe are connected; the salt barrier is filled with river sand, zeolite or ceramsite and is 10-20 cm in thickness.

Surface water, such as stormwater, is contained in a pond, or other containment having primary semi-isolated treatment areas constructed, or designated therein, which are suitable for establishing ecological communities for treatment of water within the containment. Water for treatment is induced to flow through the semi-isolated areas and the ecological communities therein for treating the water, such as by bio-filtering, breakdown and bioremediation of water-soluble or hydrocarbon-based contaminants and inhibition of the proliferation of waterborne pathogens. The treated water is then discharged from the semi-isolated areas, such as for use downstream. Discharge of the treated water from the primary semi-isolated treatment areas, as well as the use of pump systems, induces the flow of water through the semi-isolated areas and ecological communities therein to effect the treatment. Ecological communities may be established in relatively shallow secondary treatment areas in the containment and the recirculation of water therethrough may further act to treat the water in the containment.

A bioretention system includes a number of connected wall portions defining an enclosure. Each wall portion includes a pair of spaced supports that support one or more panels that are interlocked with the pair of supports via mating interlocking features. Where a wall portion includes an upper panel atop of a lower panel, a lower edge of the upper panel and a top edge of the lower panel are in contact with each other to form the wall portion. The supports are then connected in spaced relation on the transverse axis by internal bars or beams which provide support for the wall portions without the need for external soil reinforcement.

A remote pond volume adjustment system includes a control circuit, a weather receiver configured to receive a public broadcast from the National Weather Service, and a weather receiver decoder connected with the weather receiver and the control circuit that is configured to digitize the public broadcast and output a digital weather code. A cellular network communication device connected with the control circuit is configured to communicate with a property manager/owner. The control circuit is programmed to selectively open and close a drain valve based on at least one of a communication from the property manager and the digital weather code.

A vegetated or non-vegetated buffer water retention system. The current invention can be utilized for both smaller scaled (e.g., residential or commercial) purposes or larger scaled (e.g., agricultural, municipal, industrial) purposes. In certain embodiments, the system generally includes a perforated drainage pipe and an elevated overflow controller apparatus (e.g., T-shaped member, arched overflow valve apparatus) in open communication with each other. These components allow the system to control the soil matrix water table. With additional valves, pumps, and water reservoirs, the system can control both the soil matrix water table and stored water reuse. The systems can be used not only to enhance plant root uptake and microbial utilization of nutrients and pollutants in water, but also to capture and reuse water inflows, thereby aiding in flooding abatement, water conservation and preventing soil erosion.

Some embodiments are directed to a tunnel device for use in single pass sand filtration (SPSF) systems, including curved lateral walls which meet at an apex channel having a flat top, an open bottom, and side vented walls. The interaction between the characterizing components and vertically streamed treated wastewater from a pressurized pipe results in the maximized lateral transport of the treated wastewater towards the side vented walls and the adjacent soil strata therethrough which contains aerobic microbial communities able to decompose organic wastewater material thereby delivering enhanced wastewater treatment and water volume reductions through evapotranspiration.

A method is provided herein of dewatering a fly ash pond or pit, the method including: preparing one or more wellbores in, or in proximity to, the fly ash pond or pit; installing a riser pipe into a first of the wellbores, the riser pipe including a drain pipe having perforations formed therethrough, and a filter textile wrapped about the drain pipe so as to at least overlap the perforations, the filter textile being porous with openings having apparent opening size of 200 microns or less; and, generating negative pressure within the riser pipe so as to draw water from adjacent the first wellbore and through the filter textile. Advantageously, the method of the subject invention allows for the dewatering of a fly ash pond or pit with extraction of water therefrom which is visibly clear.

A flood control system for remotely and automatically controlling flooding and water storage on reservoirs. The flood control system generally includes a central computer that controls the water level by controlling or communicating with flow control gates positioned near a number of culverts, wherein each flow control gate typically includes: (a) a control unit communicatively coupled to the central computer, the control unit capable of sending local condition data to the central computer via a wireless connection and further capable of receiving control commands from the central computer; (b) an input/output interface capable of receiving signals or data regarding physical conditions proximate the flow control gate, the input/output interface coupled to the control unit; and (c) a water shutoff valve controllable by the control unit and positioned to selectively allow or block the flow of water through each culvert, wherein each control unit controls each water shutoff valve.

A water system for a hydraulic frac station. The water system includes a water source, a water retention pit, a pump, a riser station, and a water recycling system. The pump is configured to channel water from the retention pit to the riser station and to the hydraulic frac station. The water from the retention pit is channeled to the hydraulic frac station, which in turn is channeled to the recycling system via the riser station.

Disclosed is a system for managing water. In example embodiments, the system may include a long pond for storing water. In some embodiments the long pond may be used to prevent flooding, in other examples the long pond may be used as a reservoir for holding water usable with irrigation and sub-irrigation systems.